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J. L. MOHUN AND H R. STAFFORD.

' LATERAL THRUST BEARING FOR RAILROAD AXLES. APPLICATION- FILED JAN.2, 1919.

1,306,381 Kamila 1:319.

I 52 5 I. f y' t f V WL i T I M/W J ..L. MQHUN AND HJR. STAFFORD. LATERAL THRUST BEARING FOR RAILROAD AXLES. APPLICATION FILED JAN.2.1919.

1,306,387. Patented June 10, 1919.

3 SHEETSSHEET 2.

J. L. MOHUN AND H. R. STAFFORD. LATERAL THRUST BEARING FOR. RAILROAD'AIXLFS APPLICATION FILED IAN 19w.

' 1 PzII'eIItedJIIne 10, 191E).

a SHEEIS P [NI/11! TOIIS' new 4.. MUHUN To all whom concern of/Brooklyn, in the county-of Kings and' State of NGW YQI'k,"aJI1dCHAL R. STAFFORD,

of Plainfield, in the county of Union and State of New Jersey,-.have'jointly invented I a. certainnewiand usefulilmprovenient in. Lateral-Thrust Bearings-- for Railroad- Axles, of which improvement the following set forth. a

ited-to such specific application, as it is also desirably operative on axles "of other rail road vehicles; The object of the invention is to provide improved means,-jadaptable, j without substantial expense, in railroad 've-E. j hiclesof presentstandardconstructions; f0r limiting-therelative lateral 'movements of; vehicle frames antiof the wheels andpaxles',.

on which they aresupported.

The improvement claimed axles,to-;take. the lateral thrust; upon; the -inne1 -.,ends of the wheel hubs and the adholn-j driving boxes, .Experience has. developed this practice to be objectionable, for-the fol-1 lowing 'reasons:'

I practically the same vertical planes as the wheel tires, grit-and mud which fall from the tires anal-fi d lodgmenton these sur-v faces, rendering lubrication difficulhfthe oil I or grease which is applied-and is'njot thrown off by centrifugal -force, merely 'causingthe foreign matter toadhere' tothe' Wearing surtaces-J Second,'- the difficulty,- of lubri-. eating the' thrust bearing surf-aces causes them to wear in concentric interlockingridges, and as .the bearing brasses become worn and the boxes, assume lower positions on the axle,- the ridges on thehubsbecome "eccentric-to those, on the faces of the'boxcs;

ness, and reduction "of the contact surfaces and thcseare rapi'd-ly'cut away, the excessive heat is thereby generated, (lue't'o thelroughcut journals. -Third, it,being necessary-to.

I cut away a considerable portion of the lower part of the axle boxes, for the receptionof the lubricant cellars, it is'impossible to pro-' while I Inorlc particularly 1 designeqifor "application in connection with Specification of Letters-Patent.

s hereiniiully JOHN L. monumoriaaoomxiv, NEWLYOBIKI, Aim HAL it; srmrronni or PLAmriELn', s H mwaimsn "T temiiar 'rfiausr EAn G FORRAILROAD-AX IIES.

aten-ted' June 10', 1919.

v I g I yids continuous bearing faces on the boxes, Be iti'known that we, {JOHN L. Momm,

these beingwhat may be described as horse 3 shoe or invertedU shaped. It results from this thatlfthe thrust, which applied uni- I formly' around theaxial line of the-axle,

1s resistedlby a bearing surface-Which ex-.

tends only partially around it, and, further,

bearing. surfaces. "The disadvantagos' re- "sultanton these conditions are Well reoognized' by those fam liar {with the" operation of; locomotives. Fourth, i'n'thc ordinary- Among the features practical ativan:

.tage ofjour invention, thefollowing'. may be enumeratecl': first, cont nuous annular thrust bearing fsurfaces-j second,- multiple bearing thrust bearing, and means for lubricating it,

the removal of the loa er-portions of the axle boxes "presents sharp edges therein; which tend to wlpe away the 'lubricant'froin the surfaces, which are contini'lously. concentric,

irrespective of thewear of bearingbrasses; f I a. --third, an inclosecl dmst "proof."adjustable It has heretofore been the? ordinary prac- .tice, in the 'operation of locomotive driving and, fourth,absoluteprevention of thei'fric- "'ing outer ends-=of-tl'1e axle bearing boxesor' 'ti'on and. heating by contact of the axle boxes and: wheel hubs which occur in-thmopera tion of prior constructionsv 3 v i In the accompanying draw ngs; .Figure 1 is a vertical[longitudinal "central section c I Y 'through -a "]'atera1. thrust-bearing appliance First, the thrust bearing surfaces being in embQd-ying our invention; Fig 2, an end Fi s. 3 and 4, transverse sections on the m f?) s..

seen from one side ofthe appliance Fig. 6,

ring; Figs... 8,, 9 and ,10, -.section alxvi'ews taken'similarlyto Elg. l, illusltratmgmorlia view in elevation, oftheoverlappingportion o ,the lubricant retainingfrmg; Fig; 7,

aplan view of-one of 'the'sprlngs of saul fications' of structural detail, Fig. 11, a

view, in perspective, of a cake ofs olid grease for lubricating. the axle journal, Yanch; Fig.2 l2, an end view,.onf en1arge 1 sca1e, ,of

the same, witha distributing plate "-i ta :hed. 1n the practice of our invention, referrin tivedriving aide, which ishereifi exemplified, the axle, 1, carries, on each of 1ts ]our- I descriptively to thespeicific'form of embodl- V inent thereof in connectionwithaloeomo' a bearing vmand,bearing;brass are-"located adjacent to,

j But continuously out offcontact with, the i driving wheelhub, 4." -The driving axle is ci-rcumferentially- 'orreduced 'in dlam eter, of the recessescommen'clng a. short 'jd stan'cefromtheinner end of one of the journalsg' -l and extending sufficiently '15- 1 axle, adjacent to the axle bearing box, and

faralong the axleto'receive, on its inner end" portion, a .fi xed bearing collar, 5. A transmission ring, 7, is fitted freely on the compound thrust rings, 6,: hereinafter de- The bearing collai',5, is-formedin two s r p sed between the fixedand loosemembers,

abuttin semi-annular sections, ,in Order to-.5

I be attac able-to, anddetachable from, th axle, the sections being connected togetherand clamped firmlyupon the axle, by transvers'e'bolts', 5, and.nu ts .5. 'Circumferenj tial fianges,--5,-areg formed on the ends. of

. the collar sections nearer the axle'hox, said".

'fianges"abutting and forn'iing the outer wall [of a casingor'housing, in which two or more compound thrust rings, 6,6, each formed in two sections for application to and removal from the axle, are fitted freely around it.

, The sections of thethrust rings are-each 1 composed of a steel and a bronze member,

connectedbyrivets, 6, and are-Ia'ppedat their joints onewith theother, as indicated ,by broken' lines in -Fig.' 4.' Perforations, 6", are formed inthe thrust rings, for the pasvsage of lubr icant, which is forced against and between them by screw plugs, 5, closing lubricant cups, 5, projecting tro n the pe'-.

ripheryof the bearing collar, 5; Adjust-i,

ineptto compensate for wear under lateralmotion pressure'1sefl'ected,as fromt meto time desired, thejreinoval 'of-oneoh mOre of the compoundthrustfrings and the'subi ,fstitution'ofi-thickerrings. f. Figs. 9 and 10 illustrate structuralimodiflcations providing for the longitudinal ad;

; thez'fax'le. As shown ini hig; 9; a screw thread, 1?,is-cut on-the axle, and the sections. 1 of the bearing collar are corres ondingly in-' tei-nally' threaded. By s1a k bolts,

5a,'a'nd rotating the collano jh x long,

gitudinal adjustment niay,as..-i lesired, be;

effected; Intheconstruction' shown in Fig.

sections of'jth'e bearing collar'ar'e correspond .ingly recessed} Lon itudinitl'a'djustn ent is,-

' in this case, effected.

y slackening the -bolts,f

, dis'e'ngagin thesections of the bearingcol-" "lar from t 'e' axle grooves, moving 6 V p I the sec-" 'tions?"longitiidinal-ly and .rengjagmgthein with the grooves whenin desiredjadjusted position, and clampingthein in such posi tion, on the axle, by-the'bolts 5, and nuts, 5?.- The pressure resultant on lateral motion 'of the axle boxes,'2', is imparted from each of them to the adjoining bearing collar 5,

through a transm ssion ring, 7-,',formed in two semi-annular segments, for application to and removal from the axis, the, segments 'beingconnected by transverse bolts, 7, each having apropernut on onetend. The ring,- 7, whichis fitted freely on the-axle, is interposed between the icompoundithrust rings, 6, against the nearer ofwhich f it normally abuts, and the inner end of-theaxle box,'be ing normally spaced at a distance from the latter'equalto substantially one half the lateral motionallowed to the driving boxes.

A lubricant retaining ring, 8, formed in two sections, which are lapped at their joints, as

shown in Figs. 3 and 6, is fitted in a circum ferential groove-in the portion of the trans- 'nussion ring, .;7,' which is 'inclosed by the thrust ring casing, 5", the segments being pressedoutwardly, to maintain a tight joint. between the rings, 7 and 5, by springs, 8.

'Itwill be seen that inorder to pack the J I lubricant cellar, 3, by the insertion-of a cake of SOlld grease, 5, therein, as 18 now practlcally'universal practlce in the operatlon of locomotive driving fb0XS, it is neccsaryto' detach the bearing collar or the transmission ring above described, or both, from the'axle. For the purpose of packingthe cellar, we consider-it preferable to remove the bear-' ing collar'an'd slide the transmission ring sufiiciently. far f rom"th'e axle box,- to allow 0 the-removal'of thec'ellar; Ii-however,

th casing inclosing the compound thrustf 1 rings be formed. by a'circumferential flange, .7", on the transmission ring, 7 asshown 1n Fig; 8, instead'ofon thebearing'collar, the a detachment 'of'the transmission ring will enable the cellar tobe removed for packing.

In' the operation of a lateral thrust beari'ngappliance embodying our invention, the pressure developed by the lateral motion of either of thebearing boxes. of-an axle of a" locomotive or other railroad-vehicle, is trans .initted, from "the inner end thereof, through theloose ring, 7, to thefcompmmd thrust 'rings, -6, 6, and is received therefrom by then-x1e,- through the bearing collar, 5, fixed thereon. The friction of the box on the.

transi-nission ring being greater than thatfof the latter on the lubricated compound thrust p rings,"6i, 6 ,there' will be no movement of-the -10, a. plurality (ofadjoining circumferen f1 tialgrooves, 1 is cut in .theaxle, and; the

transmission rii'ig, relatively to the axl'e, box,-*

"and any rotatory movement that/will boxes and the wheel hubs,the objections, v fore noted, which have bcen'developecl in the 3 operation of prior devices, in which lateral 

